结论双心室起搏可有效改善慢性心衰伴心室内传导阻滞患者近期的心功能。
The biventricular synchronous pacing improves the hemodynamic effect in patients with chronic heart failure and intraventricular conduction delay.
分析猝死的诱因主要有血清钾浓度降低，严重心律失常，包括室内传导阻滞、室性并行心律、室性早搏等。
The major risk factors were hypokalemia, and severe arrhythmias including intraventricular block, ventricular parasystole and ventricular premature beats.
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